2025 Half Year Results

• Exceptional safety performance with zero serious accidents
• Resilient production despite wet weather, delivering 6.5Mt of saleable coal
• Solid financial performance with US$147M in Underlying EBITDA

Stanmore Resources has reported its 2025 half-year results, showcasing the resilience of its platform despite weather-related disruptions. The company delivered 6.5 million tonnes of saleable coal production and 6.6 million tonnes of total coal sales, achieving Underlying EBITDA of US$147 million. This robust financial performance was underpinned by improved FOB cash costs of US$89 per tonne, despite the lower production volumes. Stanmore's balance sheet remains strong, with total cash of US$181 million and net debt of US$99 million as of June 30, 2025. The company also completed the large-scale MRA2C creek diversion project ahead of schedule and under budget, supporting the planned expansion and ramp-up of production at South Walker Creek. Additionally, Stanmore reported a net increase in its total Reserves and Resources, including the maiden declaration of Reserves and Resources for the Isaac Downs Extension Project. Despite the challenging weather conditions, Stanmore has reaffirmed its 2025 Guidance, with saleable production expected to be second-half weighted, supporting unit cost performance for the remainder of the year.

Stanmore has reaffirmed its 2025 Guidance, with the following key metrics: Saleable Production of 13.8 - 14.4 Mt, FOB Cash Cost of US$85 - US$90 per tonne sold, and Capital Expenditure of US$80 - US$90 million.